BR8002684A - Processo para a preparacao de melanina - Google Patents
Processo para a preparacao de melaninaInfo
- Publication number
- BR8002684A BR8002684A BR8002684A BR8002684A BR8002684A BR 8002684 A BR8002684 A BR 8002684A BR 8002684 A BR8002684 A BR 8002684A BR 8002684 A BR8002684 A BR 8002684A BR 8002684 A BR8002684 A BR 8002684A
- Authority
- BR
- Brazil
- Prior art keywords
- melanin
- preparation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Cosmetics (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7903473A NL7903473A (nl) | 1979-05-03 | 1979-05-03 | Werkwijze voor het bereiden van melamine. |
NL7907368A NL7907368A (nl) | 1979-10-04 | 1979-10-04 | Werkwijze voor het bereiden van melamine. |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8002684A true BR8002684A (pt) | 1980-12-16 |
Family
ID=26645525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8002684A BR8002684A (pt) | 1979-05-03 | 1980-04-30 | Processo para a preparacao de melanina |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0018696B1 (es) |
BR (1) | BR8002684A (es) |
CA (1) | CA1128516A (es) |
CS (1) | CS216533B2 (es) |
DE (1) | DE3060796D1 (es) |
ES (1) | ES8101056A1 (es) |
HU (1) | HU184277B (es) |
IN (1) | IN153310B (es) |
NO (1) | NO801284L (es) |
PL (1) | PL126936B1 (es) |
YU (1) | YU117780A (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5514796A (en) * | 1995-06-07 | 1996-05-07 | Melamine Chemicals, Inc. | Melamine of improved purity produced by high-pressure, non-catalytic process |
NL1012467C2 (nl) * | 1999-06-29 | 2001-01-02 | Dsm Nv | Werkwijze voor het afscheiden van melamine uit melaminehoudende gasmengels. |
NL1012466C2 (nl) * | 1999-06-29 | 2001-01-02 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
AU763504B2 (en) * | 1999-07-27 | 2003-07-24 | Agrolinz Melamin Gmbh | Process for preparing melamine |
DE102008032425B4 (de) * | 2008-07-10 | 2015-07-30 | Air Liquide Global E&C Solutions Germany Gmbh | Verfahren und Anlage zur Herstellung von Melamin |
CN105503758B (zh) * | 2016-01-18 | 2019-05-14 | 尹明大 | 一种三聚氰胺生产***和工艺 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1670286A1 (de) * | 1967-11-11 | 1971-01-28 | Basf Ag | Verfahren zur Aufarbeitung der bei der Melaminsynthese anfallenden Abgase |
-
1980
- 1980-04-29 HU HU801065A patent/HU184277B/hu unknown
- 1980-04-30 YU YU01177/80A patent/YU117780A/xx unknown
- 1980-04-30 BR BR8002684A patent/BR8002684A/pt unknown
- 1980-05-01 DE DE8080200405T patent/DE3060796D1/de not_active Expired
- 1980-05-01 EP EP80200405A patent/EP0018696B1/en not_active Expired
- 1980-05-02 ES ES491104A patent/ES8101056A1/es not_active Expired
- 1980-05-02 PL PL1980223959A patent/PL126936B1/pl unknown
- 1980-05-02 NO NO801284A patent/NO801284L/no unknown
- 1980-05-02 CA CA351,211A patent/CA1128516A/en not_active Expired
- 1980-05-03 IN IN511/CAL/80A patent/IN153310B/en unknown
- 1980-05-04 CS CS803103A patent/CS216533B2/cs unknown
Also Published As
Publication number | Publication date |
---|---|
YU117780A (en) | 1982-10-31 |
CS216533B2 (en) | 1982-11-26 |
EP0018696B1 (en) | 1982-09-01 |
CA1128516A (en) | 1982-07-27 |
NO801284L (no) | 1980-11-04 |
PL126936B1 (en) | 1983-09-30 |
ES491104A0 (es) | 1980-12-01 |
PL223964A1 (es) | 1981-02-13 |
EP0018696A1 (en) | 1980-11-12 |
DE3060796D1 (en) | 1982-10-28 |
HU184277B (en) | 1984-07-30 |
ES8101056A1 (es) | 1980-12-01 |
IN153310B (es) | 1984-06-30 |
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